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Home All issues Volume 534 (October 2011) A&A, 534 (2011) A119 Full HTML
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This article has an erratum: [https://doi.org/10.1051/0004-6361/201117684e]

Table 2

Best-fit spectral parameters around the period of our main INTEGRAL observations.

Time Observations Disc Norm.b k Tin kTe (keV) τc EFe line ωd/2π Fe Fbolf
(MJDa) (Rev. #) (keV) or Γ (keV) (d.o.f.)
217.7–217.8 N.A.g 33784 0.18  ±  0.01 Γ = 1.62  ±  0.02 – 6.53 0.34 1.45 (281) 1.43 N.A.
237.5–240.2 895h 35 0.83  ±  0.10 41 1.63 6.56 0.25  ±  0.05 0.84 (97) 1.99 0.82
240.7–243.2 896h 100 0.67 38 1.69 6.15 0.19 1.05 (102) 2.19 0.89
243.7–246.2 897h 100  ±  50 0.65  ±  0.10 41 1.53 6.00 0.21  ±  0.03 1.13 (103) 2.14 0.86
246.7–249.1 898h 100 0.64 39 1.59 6.00 0.22  ±  0.05 1.14 (102) 2.29 0.92
249.7–252.1 899h 66 0.75 40 1.59 6.37  ±  0.20 0.26  ±  0.05 1.09 (102) 2.49 1.02
252.5–255.1 900h 102  ±  51 0.68 39 1.59 6.17 0.25 0.78 (102) 2.74 1.09
255.6–258.1 901h 124 0.70 45 1.36 6.31 0.32  ±  0.04 0.99 (102) 3.18 1.25
259.9–261.1 902 82887 0.19  ±  0.01 38 1.49 6.23 0.25  ±  0.04 1.58 (333) 3.38 1.64
264.5–267.1 904h 134 0.73 39 1.45 6.23 0.34 1.07 (102) 4.21 1.51
267.6–270.1 905h 183 0.67 41 1.31 6.27 0.35  ±  0.04 1.11 (102) 4.60 1.61
270.4–272.8 906h 370 0.60 38 1.40 6.07 0.32 1.33 (102) 5.04 1.77
273.4–276.0 907h 198 0.68 39 1.28 6.45 0.35 1.59 (102) 5.67 1.98
276.4–278.8 908h 338 0.62 37 1.28 6.29 0.39  ±  0.06 1.15 (102) 6.59 2.15
279.4–281.5 909 32816 0.21 39 1.16 6.23 0.39  ±  0.04 0.88 (312) 7.80 2.79
281.7–281.8 N.A.g 52 0.85  ±  0.09 Γ = 1.80  ±  0.01 – 6.27 0.38  ±  0.06 0.57 (255) 7.94 N.A.
282.4–284.9 910h 32 1.19 40 1.14  ±  0.12 6.00 0.49  ±  0.04 0.96 (96) 7.69 2.25
289.3–289.6 N.A.g 840436 0.16 Γ = 1.79  ±  0.03 – 0.28  ±  0.07 1.34 (228) 9.65 N.A.
297.8–297.9 N.A.g 174096 0.22  ±  0.01 Γ = 1.95  ±  0.02 – 6.00 0.10  ±  0.05 1.32 (260) 11.4 N.A.
301.1–303.3 916 3196 0.61  ±  0.02 256 0.01 6.00 0.51 1.91 (252) 12.2 2.93
303.6–303.8 N.A.g 2652 0.73  ±  0.04 35 0.50 6.74 0.36 1.77 (192) 14.6 N.A.
310.6–310.7 N.A.g 999 1.00 Γ = 2.33 – 6.15 – 1.50 (178) 13.3 N.A.

Notes. Models applied in XSPEC notations: constant*phabs*reflect*(diskbb+gaussian+powerlaw) or constant*phabs*reflect*(diskbb+gaussian+comptt) (not all components always needed). Γ is the photon index. NH varied between 4.9–6.3  ×  1021 cm-2. Errors are given at the 90% confidence level (Δχ2 = 2.7).

(a)

MJD−55000.

(b)

Disc normalization K is proportional to (R/D)2cosθ, where R is the inner disc radius in km, D is the distance to the source in kpc and θ the inclination angle of the disc.

(c)

Plasma optical depth.

(d)

Reflection scaling factor (1 for isotropic source above disc).

(e)

Computed in the 2–20 keV range. Units: 10-9 erg cm-2 s-1.

(f)

X-ray bands extrapolated in the 0.01 keV–10 MeV range. Units: 10-8 erg cm-2 s-1.

(g)

N.A. = Non Applicable (only XRT and PCA data available).

(h)

XRT data not available.

(i)

Pegged at lower limit (6 keV).

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